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pentagon [3]
4 years ago
8

Write a word phrase for the following algebraic expression: 8n-3.

Mathematics
2 answers:
Harlamova29_29 [7]4 years ago
7 0

Here is the expression:

8n-3

"n" is defined as a variable. In the expression, "n" is being multiplied by 8.

Current\ Expression: 8\ \times\ a\ number\ n

"-" is the subtraction sign. You are going to be subtracting. Most of the time, when subtracting, "decreased by" is often used for subtracting.

Current\ Expression: 8\ \times\ a\ number\ n\ decreased\ by

3 is just 3. You can just add 3 to the expression.

Current\ Expression: 8\ \times\ a\ number\ n\ decreased\ by\ 3

ANSWER: 8 times a number n decreased by 3

exis [7]4 years ago
3 0

eight times n minus three.

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What is the answer to this equation -5÷5/7
forsale [732]
-5 divided by 5/7 is -7
5 0
3 years ago
What is the 7th term of the geometric sequence where a1 = -5 and a5 = -1,280?
8_murik_8 [283]
Any geometric sequence can be expressed as:

a(n)=ar^(n-1), a=initial term, r=common ratio, n=term number.

Here we are give the initial term so we have to solve to solve for the common ratio...

a(5)=-1280 and a(1)=-5 so

-1280=-5r^(5-1)

-1280=-5r^4

256=r^4

256^(1/4)=r

4=r, so our sequence is:

a(n)=-5(4^(n-1)), so the 7th term is:

a(7)=-5(4^6)

a(7)= -20480


3 0
3 years ago
Mike has a total of 25 dimes and nickels. If the total value of the coins is $1.90 how many of each coin does he have? ​
bezimeni [28]

Answer:

12 nickels and 13 dimes

Step-by-step explanation:

d = # of dimes

n = # of nickels

Set up a System of Equations as follows:

d + n = 25

.10d + .05n = 1.90

now solve for 'd' or 'n' and use Substitution:

d = 25-n

.10(25-n) + .05n = 1.90

2.5 - .10n + .05n = 1.90

-.10n + .05n = -0.6

-.05n = -0.6

n = -0.6/-.05

n = 12

d + 12 = 25

d = 13

Check:   12(.05) + 13(.10) should equal 1.90

0.60 + 1.30 = 1.90

1.90 = 1.90

3 0
3 years ago
Read 2 more answers
PLEASE HELP!!!! 50 POINTS
Leni [432]

First you need to rewrite the equation in the form y = mx +b:

2y = x-4

Divide all terms by 2:

2y / 2 = x/2 - 4/2

Simplify:

y = 1/2x - 2

The slope of the line is 1/2.

A perpendicular line has a slope of the negative reciprocal, which would be -2.

Now using the point slope method:

y - y1 = m(x-x1)

Using the given point of (8,-4) and m = -2

you get:

y +4 = -2(x-8)

Simplify:

y +4 = -2x +16

Now subtract 4 from both sides to get the final equation:

y = -2x +12

3 0
3 years ago
Which level does macroeconomics forces on?<br> A. Personal<br> B. Buisness <br> C. Government
Zielflug [23.3K]
C? either B or C i believe. Hope this helps
7 0
4 years ago
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